JWTechsol Posted April 30, 2012 Report Share Posted April 30, 2012 Hello, I have a Jazz OPLC which I want to use as a MODBUS master, to read from, and write to 3 inverters on an RS485 modbus network. I have downloaded a U90 sample program from a thread on the foum, which has enabled MODBUS comms on the Jazz. It now reads a value from Node 2 on the network. Now I cannot get U90 Ladder to re-connect to the Jazz. I know this is because you cannot have 2 comms paths into the Jazz, but how do I put code in there to re-enable RS232 comms? What do I do? Quote Link to comment Share on other sites More sharing options...
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